If $\|x\|$ converges weakly to $x$, then $\|x\| \leq \liminf_{n\in\mathbb{N}} \|x_n\|$.
Can someone explain this? Thanks.
2026-03-28 07:36:39.1774683399
Why $\|x\| \leq \liminf_{n\in\mathbb{N}} \|x_n\|$
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